Harry, Liam, Louis and Niall will pop up in an upcoming episode of cartoon comedy Family Guy.

The lads will appear in an episode called Run, Chris, Run, where around a campfire, Stewie tells the boyband a horror story about non-skinny jeans.

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CARTOON HEROES: 1D will pop up in an episode of Family Guy

That's not too scary for Harry at least – he's trying to bring back bootcut jeans and flares at the moment.

Family Guy executive producers Richard Appel and Steve Callaghan told Entertainment Weekly: "There are not a lot of shows that, in the same season, feature guest-star appearances by both Frank Sinatra, Jr. and One Direction.

"And we really enjoyed their time with us, until we realised we were both old enough to be their fathers."

Unfortunately, the world won't be treated to Niall Horan's Irish brogue on the show, with only Liam Payne and Louis Tomlinson having recorded audio for the show.

Simon Cowell will also reportedly pop up in the episode, which will air in May, although it's unclear whether the X Factor judge will provide his voice or whether an actor will take his place.

1D have officially gone on hiatus, performing their last televised gig on The X Factor final and on a pre-taped segment for Dick Clark's New Year's Rockin' Eve.

While Harry enjoys a reality TV romance with Kendall Jenner and Louis prepares for fatherhood, Niall has been holding down the fan fort, recently tweeting: "Hey guys just to let ya know, I'm still here don't worry. Just keeping my head down and enjoying the break, hope you understand. Love you."